Members of the Hazemoun and Ahrar movements attacked people at cafes in Cairo, chanting "Sharia is lifestyle," witnesses said.

Several people were injured during Saturday's attack, including political activists known for frequenting the cafes, witnesses told al-Shorouk newspaper. They said the attackers fired birdshot and launched fireworks.

Hazemoun is comprised of former presidential candidate Hazem Salah Abu Ismail's supporters, and Ahrar is a self-styled vigilante youth group that promotes public virtue, Egypt Independent reported.